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  <a name="EN-US_TOPIC_0000002164814010"></a><a name="EN-US_TOPIC_0000002164814010"></a>
  <h1 class="topictitle1">After the System Disk of a VMware VM Is Restored to a New VM, the Target VM Fails to Be Started</h1>
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    <h4 class="sectiontitle">Symptom</h4>
    <p>After the system disk of a VMware VM is restored to a new VM, the target VM, upon startup, enters the <strong>Boot Manager</strong> page and cannot be started using any boot option.</p>
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    <h4 class="sectiontitle">Possible Causes</h4>
    <p>When the system disk of a VM is restored to a new VM that runs a different OS or OS version, the boot option of the source VMware VM is BIOS, but that of the target VM can only be EFI.</p>
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    <h4 class="sectiontitle">Troubleshooting</h4>
    <ol>
     <li><span>Use a browser to log in to the vCenter Server and choose <span class="menucascade"><b><span class="uicontrol">VM Options</span></b> &gt; <b><span class="uicontrol">Boot Options</span></b> &gt; <b><span class="uicontrol">Firmware</span></b></span> to view the boot option of the corresponding VM.</span></li>
     <li><span>If the boot options of the source VM and target VM are different, perform VM restoration.</span></li>
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     <strong>Parent topic:</strong> <a href="en-us_topic_0000002200054965.html">FAQs</a>
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